Energy-Efficient Objects Retrieval on Indexed Broadcast Parallel Channels

摘要

In a mobile computing environment, satisfying a "timely and reliable" access to public data in response to requests generated by a large population of clients is a challenge. This is mainly due to the limitations imposed bv mobile units and a wireless medium. The hardware of the mobile unit offers different operational modes that consume different energy level. Along with the architectural and hardware enhancements, efficient algorithms to allocate data objects and appropriate protocols to retrieve data objects from single and multiple indexed parallel channels can be developed to minimize power consumption and improve access efficiency. This work is an attempt in this direction. It proposes and examines a scheduling method that minimizes both energy consumption and response time when retrieving objects from indexed broadcast parallel channels in the presence of conflicts. A simulation of the scheme is presented to analyze the relationship between response time and power consumption, and the impact of conflicts among requested objects.